Last 59 trading days. "Overnight" = today's Open vs the PRIOR day's Close
(the same move plotted as the pink dotted line on the chart) — each day's own Open→Close
move is not counted here. Overnight $/% is what you'd have earned holding only from close
to next open; Cum. Index is the running compounded value shown on the chart's pink line.
Date
Prior Close
Overnight $
Overnight %
Cum. Index
Open
High
Low
Close
2026-07-10
₩25,585.00
+130.00
+0.51%
₩25,715.00
₩25,715.00
₩25,815.00
₩25,565.00
₩25,600.00
2026-07-13
₩25,600.00
+25.00
+0.10%
₩25,740.11
₩25,625.00
₩25,770.00
₩25,600.00
₩25,680.00
2026-07-14
₩25,680.00
-225.00
-0.88%
₩25,514.59
₩25,455.00
₩25,490.00
₩25,220.00
₩25,440.00
2026-07-15
₩25,440.00
+25.00
+0.10%
₩25,539.66
₩25,465.00
₩25,580.00
₩25,425.00
₩25,450.00
2026-07-16
₩25,450.00
+25.00
+0.10%
₩25,564.75
₩25,475.00
₩25,525.00
₩25,400.00
₩25,400.00
2026-07-21
₩25,400.00
-515.00
-2.03%
₩25,046.41
₩24,885.00
₩24,995.00
₩24,860.00
₩24,950.00
2026-07-22
₩24,950.00
+200.00
+0.80%
₩25,247.18
₩25,150.00
₩25,200.00
₩25,095.00
₩25,115.00
2026-07-23
₩25,115.00
-60.00
-0.24%
₩25,186.86
₩25,055.00
₩25,080.00
₩24,835.00
₩24,870.00
2026-07-24
₩24,870.00
-100.00
-0.40%
₩25,085.59
₩24,770.00
₩24,790.00
₩24,520.00
₩24,585.00
2026-07-27
₩24,585.00
+105.00
+0.43%
₩25,192.73
₩24,690.00
₩24,885.00
₩24,650.00
₩24,880.00
2026-07-28
₩24,880.00
-225.00
-0.90%
₩24,964.90
₩24,655.00
₩24,700.00
₩24,440.00
₩24,470.00
2026-07-29
₩24,470.00
+90.00
+0.37%
₩25,056.72
₩24,560.00
₩24,635.00
₩24,185.00
₩24,330.00
2026-07-30
₩24,330.00
-455.00
-1.87%
₩24,588.13
₩23,875.00
₩23,985.00
₩23,730.00
₩23,730.00
2026-07-31
₩23,730.00
+200.00
+0.84%
₩24,795.36
₩23,930.00
₩24,255.00
₩23,925.00
₩24,030.00
2026-08-03
₩24,030.00
+280.00
+1.17%
₩25,084.28
₩24,310.00
₩24,320.00
₩24,200.00
₩24,265.00
2026-08-04
₩24,265.00
+275.00
+1.13%
₩25,368.56
₩24,540.00
₩24,605.00
₩24,355.00
₩24,595.00
2026-08-05
₩24,595.00
+370.00
+1.50%
₩25,750.20
₩24,965.00
₩24,985.00
₩24,840.00
₩24,925.00
2026-08-06
₩24,925.00
-155.00
-0.62%
₩25,590.07
₩24,770.00
₩24,810.00
₩24,615.00
₩24,790.00
2026-08-07
₩24,790.00
-40.00
-0.16%
₩25,548.78
₩24,750.00
₩24,785.00
₩24,615.00
₩24,625.00
2026-08-10
₩24,625.00
-20.00
-0.08%
₩25,528.03
₩24,605.00
₩24,815.00
₩24,565.00
₩24,800.00
2026-08-11
₩24,800.00
+0.00
+0.00%
₩25,528.03
₩24,800.00
₩24,800.00
₩24,675.00
₩24,740.00
2026-08-12
₩24,740.00
-130.00
-0.53%
₩25,393.89
₩24,610.00
₩24,710.00
₩24,580.00
₩24,685.00
2026-08-13
₩24,685.00
+30.00
+0.12%
₩25,424.75
₩24,715.00
₩24,800.00
₩24,625.00
₩24,800.00
2026-08-14
₩24,800.00
+90.00
+0.36%
₩25,517.02
₩24,890.00
₩24,975.00
₩24,820.00
₩24,910.00
2026-08-18
₩24,910.00
-205.00
-0.82%
₩25,307.02
₩24,705.00
₩24,715.00
₩24,500.00
₩24,545.00
2026-08-19
₩24,545.00
-50.00
-0.20%
₩25,255.47
₩24,495.00
₩24,495.00
₩24,155.00
₩24,215.00
2026-08-20
₩24,215.00
-40.00
-0.17%
₩25,213.75
₩24,175.00
₩24,290.00
₩24,090.00
₩24,250.00
2026-08-21
₩24,250.00
-280.00
-1.15%
₩24,922.62
₩23,970.00
₩23,975.00
₩23,785.00
₩23,910.00
2026-08-24
₩23,910.00
+65.00
+0.27%
₩24,990.38
₩23,975.00
₩23,980.00
₩23,780.00
₩23,845.00
2026-08-25
₩23,845.00
-40.00
-0.17%
₩24,948.45
₩23,805.00
₩23,955.00
₩23,770.00
₩23,955.00
2026-08-26
₩23,955.00
+0.00
+0.00%
₩24,948.45
₩23,955.00
₩24,015.00
₩23,850.00
₩23,920.00
2026-08-27
₩23,920.00
+150.00
+0.63%
₩25,104.90
₩24,070.00
₩24,115.00
₩23,915.00
₩23,965.00
2026-08-28
₩23,965.00
+40.00
+0.17%
₩25,146.81
₩24,005.00
₩24,045.00
₩23,875.00
₩23,890.00
2026-08-31
₩23,890.00
-15.00
-0.06%
₩25,131.02
₩23,875.00
₩23,910.00
₩23,750.00
₩23,755.00
2026-09-01
₩23,755.00
-10.00
-0.04%
₩25,120.44
₩23,745.00
₩23,795.00
₩23,660.00
₩23,740.00
2026-09-02
₩23,740.00
-80.00
-0.34%
₩25,035.79
₩23,660.00
₩23,660.00
₩23,465.00
₩23,500.00
2026-09-03
₩23,500.00
+0.00
+0.00%
₩25,035.79
₩23,500.00
₩23,570.00
₩23,425.00
₩23,485.00
2026-09-04
₩23,485.00
+175.00
+0.75%
₩25,222.34
₩23,660.00
₩23,745.00
₩23,595.00
₩23,620.00
2026-09-07
₩23,620.00
-180.00
-0.76%
₩25,030.13
₩23,440.00
₩23,455.00
₩23,210.00
₩23,320.00
2026-09-08
₩23,320.00
+0.00
+0.00%
₩25,030.13
₩23,320.00
₩23,375.00
₩23,235.00
₩23,330.00
2026-09-09
₩23,330.00
-165.00
-0.71%
₩24,853.11
₩23,165.00
₩23,240.00
₩23,120.00
₩23,140.00
2026-09-10
₩23,140.00
-10.00
-0.04%
₩24,842.37
₩23,130.00
₩23,165.00
₩23,035.00
₩23,115.00
2026-09-11
₩23,115.00
+0.00
+0.00%
₩24,842.37
₩23,115.00
₩23,155.00
₩23,020.00
₩23,130.00
2026-09-14
₩23,130.00
-85.00
-0.37%
₩24,751.07
₩23,045.00
₩23,150.00
₩23,040.00
₩23,135.00
2026-09-15
₩23,135.00
+35.00
+0.15%
₩24,788.52
₩23,170.00
₩23,310.00
₩23,125.00
₩23,295.00
2026-09-16
₩23,295.00
+75.00
+0.32%
₩24,868.33
₩23,370.00
₩23,510.00
₩23,355.00
₩23,455.00
2026-09-17
₩23,455.00
+125.00
+0.53%
₩25,000.86
₩23,580.00
₩23,695.00
₩23,505.00
₩23,690.00
2026-09-18
₩23,690.00
+70.00
+0.30%
₩25,074.73
₩23,760.00
₩23,925.00
₩23,750.00
₩23,885.00
2026-09-21
₩23,885.00
+95.00
+0.40%
₩25,174.46
₩23,980.00
₩24,025.00
₩23,935.00
₩23,940.00
2026-09-22
₩23,940.00
+135.00
+0.56%
₩25,316.43
₩24,075.00
₩24,095.00
₩23,715.00
₩23,800.00
2026-09-23
₩23,800.00
-100.00
-0.42%
₩25,210.05
₩23,700.00
₩23,810.00
₩23,600.00
₩23,810.00
2026-09-28
₩23,810.00
-130.00
-0.55%
₩25,072.41
₩23,680.00
₩23,745.00
₩23,595.00
₩23,725.00
2026-09-29
₩23,725.00
-135.00
-0.57%
₩24,929.74
₩23,590.00
₩23,610.00
₩23,430.00
₩23,510.00
2026-09-30
₩23,510.00
-60.00
-0.26%
₩24,866.12
₩23,450.00
₩23,575.00
₩23,440.00
₩23,470.00
2026-10-01
₩23,470.00
+90.00
+0.38%
₩24,961.47
₩23,560.00
₩23,675.00
₩23,505.00
₩23,610.00
2026-10-02
₩23,610.00
-40.00
-0.17%
₩24,919.18
₩23,570.00
₩23,660.00
₩23,420.00
₩23,430.00
2026-10-06
₩23,430.00
+160.00
+0.68%
₩25,089.35
₩23,590.00
₩23,635.00
₩23,545.00
₩23,605.00
2026-10-07
₩23,605.00
+75.00
+0.32%
₩25,169.07
₩23,680.00
₩23,690.00
₩23,620.00
₩23,655.00
2026-10-08
₩23,655.00
-60.00
-0.25%
₩25,105.23
₩23,595.00
₩23,605.00
₩23,500.00
₩23,505.00
📈 Overnight % Gain Trend
Cumulative overnight-only return, indexed to 0% on 2026-07-09
(same window as the chart overlay and table above, just plotted as % instead of $).
🗓️ Overnight End-of-Month PnL
One checkpoint per calendar month (value at the last trading day seen that month) from the
same overnight-only cumulative series above. The first and last
month shown may be partial if the data window doesn't start/end on a month boundary.
Month
Start Value
End Value
PnL $
PnL %
2026-07
₩25,585.00
₩24,795.36
-789.64
-3.09%
2026-08
₩24,795.36
₩25,131.02
+335.66
+1.35%
2026-09
₩25,131.02
₩24,866.12
-264.90
-1.05%
2026-10
₩24,866.12
₩25,105.23
+239.11
+0.96%
📅 Seasonality — Close Price by Year
Each line is one calendar year's close price (or % change from that year's first trading
day, in "% from Jan 1" mode), aligned by month/day so the same point in the calendar lines
up across years. Most recent year is drawn thicker. Click a year in the legend to hide/show it.
🌙 Overnight vs. Intraday Return
Overnight (close→next open) Intraday (open→close)
From 2021-04-09 to 2026-10-08 (1,338 trading days), $1 invested
overnight-only would now be worth $3.94;
$1 invested intraday-only would be worth $0.61.
379800's historical return has leaned mostly on the overnight session.
This reflects a statistical pattern in past prices, not a trading strategy or investment advice —
it ignores transaction costs and slippage.
🎯 Best Strategy Backtest
See which saved strategy has the best real backtested win-rate on 379800, with buy/sell triggers plotted right on the chart.